This reworks a few things in building and distributing React. The biggest change is using fbjs to share dependencies with other libraries. We're also using Gulp for some build steps.
Rely on jest for now until we get a better and less hacky solution to running tests in the browser, probably a totally different test suite with different behavior/goals.
Size comparison:
```
raw gz Compared to master @ 6ed98ec0c8
= = build/JSXTransformer.js
-15736 -3247 build/react-with-addons.js
+287 +7 build/react-with-addons.min.js
-14412 -2887 build/react.js
+274 +15 build/react.min.js
```
Differences mostly look to be various bits of whitespace that Babel ends up removing during its transforms (https://gist.github.com/spicyj/21ef31f4d95fb7a58daf). In minified files, mostly additions of `"use strict";`.
We will continue using `bin/jsx-internal`, well, internally.
Note that this version no longer respects `@providesModule`, and it
doesn't do anything special with constants like `__DEV__`, so we can no
longer get to claim that `bin/jsx` can be used to build the core.
I'm happy about this, personally, because it demonstrates the flexibility
of Commoner.
Paul O’Shannessy
Ben Alpert
cpojer
Ben Newman